Question

a 5m60cm high vertical pole casts a shadow of 3m20cm long, the length cast by another pole is 10m50cm long what is the size of the other vertical pole

Answer 1

Answer:

ANSWER

Let x m be the length of the pole whose shadow is of length 10m50cm.

Let y m be the length of the pole whose shadow is 5m long.

Clearly, it is a case of direct variation.

i)

3.20

5.60

=

x

10.50

x=

5.60

10.50×3.20

=6

Hence, the length of the shadow is 6m.

ii)

3.20

5.60

=

5

y

x=

3.20

5.60×5

=8.75

Hence, the length of the pole is 8.75 meter